Setup entry point + integrated moonworks stuff
This commit is contained in:
16
Nerfed.Runtime/Graphics/Font/Enums.cs
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16
Nerfed.Runtime/Graphics/Font/Enums.cs
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namespace Nerfed.Runtime.Graphics;
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public enum HorizontalAlignment
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{
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Left,
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Center,
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Right
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}
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public enum VerticalAlignment
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{
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Baseline,
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Top,
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Middle,
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Bottom
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}
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123
Nerfed.Runtime/Graphics/Font/Font.cs
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123
Nerfed.Runtime/Graphics/Font/Font.cs
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using System.Runtime.InteropServices;
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using WellspringCS;
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namespace Nerfed.Runtime.Graphics;
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public unsafe class Font : GraphicsResource
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{
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public Texture Texture { get; }
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public float PixelsPerEm { get; }
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public float DistanceRange { get; }
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internal IntPtr Handle { get; }
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private byte* StringBytes;
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private int StringBytesLength;
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/// <summary>
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/// Loads a TTF or OTF font from a path for use in MSDF rendering.
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/// Note that there must be an msdf-atlas-gen JSON and image file alongside.
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/// </summary>
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/// <returns></returns>
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public static Font Load(GraphicsDevice graphicsDevice, CommandBuffer commandBuffer, string fontPath)
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{
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FileStream fontFileStream = new FileStream(fontPath, FileMode.Open, FileAccess.Read);
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void* fontFileByteBuffer = NativeMemory.Alloc((nuint)fontFileStream.Length);
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Span<byte> fontFileByteSpan = new Span<byte>(fontFileByteBuffer, (int)fontFileStream.Length);
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fontFileStream.ReadExactly(fontFileByteSpan);
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fontFileStream.Close();
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FileStream atlasFileStream = new FileStream(Path.ChangeExtension(fontPath, ".json"), FileMode.Open, FileAccess.Read);
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void* atlasFileByteBuffer = NativeMemory.Alloc((nuint)atlasFileStream.Length);
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Span<byte> atlasFileByteSpan = new Span<byte>(atlasFileByteBuffer, (int)atlasFileStream.Length);
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atlasFileStream.ReadExactly(atlasFileByteSpan);
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atlasFileStream.Close();
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IntPtr handle = Wellspring.Wellspring_CreateFont(
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(IntPtr)fontFileByteBuffer,
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(uint)fontFileByteSpan.Length,
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(IntPtr)atlasFileByteBuffer,
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(uint)atlasFileByteSpan.Length,
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out float pixelsPerEm,
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out float distanceRange
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);
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string imagePath = Path.ChangeExtension(fontPath, ".png");
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ImageUtils.ImageInfoFromFile(imagePath, out uint width, out uint height, out uint sizeInBytes);
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ResourceUploader uploader = new ResourceUploader(graphicsDevice);
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Texture texture = uploader.CreateTexture2DFromCompressed(imagePath);
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uploader.Upload();
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uploader.Dispose();
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NativeMemory.Free(fontFileByteBuffer);
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NativeMemory.Free(atlasFileByteBuffer);
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return new Font(graphicsDevice, handle, texture, pixelsPerEm, distanceRange);
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}
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private Font(GraphicsDevice device, IntPtr handle, Texture texture, float pixelsPerEm, float distanceRange) : base(device)
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{
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Handle = handle;
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Texture = texture;
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PixelsPerEm = pixelsPerEm;
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DistanceRange = distanceRange;
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StringBytesLength = 32;
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StringBytes = (byte*)NativeMemory.Alloc((nuint)StringBytesLength);
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}
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public unsafe bool TextBounds(
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string text,
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int pixelSize,
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HorizontalAlignment horizontalAlignment,
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VerticalAlignment verticalAlignment,
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out Wellspring.Rectangle rectangle
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)
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{
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int byteCount = System.Text.Encoding.UTF8.GetByteCount(text);
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if (StringBytesLength < byteCount)
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{
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StringBytes = (byte*)NativeMemory.Realloc(StringBytes, (nuint)byteCount);
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}
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fixed (char* chars = text)
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{
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System.Text.Encoding.UTF8.GetBytes(chars, text.Length, StringBytes, byteCount);
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byte result = Wellspring.Wellspring_TextBounds(
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Handle,
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pixelSize,
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(Wellspring.HorizontalAlignment)horizontalAlignment,
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(Wellspring.VerticalAlignment)verticalAlignment,
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(IntPtr)StringBytes,
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(uint)byteCount,
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out rectangle
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);
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if (result == 0)
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{
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Log.Warning("Could not decode string: " + text);
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return false;
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}
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}
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return true;
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}
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protected override void Dispose(bool disposing)
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{
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if (!IsDisposed)
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{
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if (disposing)
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{
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Texture.Dispose();
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}
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Wellspring.Wellspring_DestroyFont(Handle);
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}
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base.Dispose(disposing);
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}
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}
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26
Nerfed.Runtime/Graphics/Font/Structs.cs
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26
Nerfed.Runtime/Graphics/Font/Structs.cs
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using System.Numerics;
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using System.Runtime.InteropServices;
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namespace Nerfed.Runtime.Graphics;
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[StructLayout(LayoutKind.Sequential)]
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public struct FontVertex : IVertexType
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{
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public Vector3 Position;
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public Vector2 TexCoord;
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public Color Color;
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public static VertexElementFormat[] Formats { get; } =
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[
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VertexElementFormat.Vector3,
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VertexElementFormat.Vector2,
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VertexElementFormat.Color
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];
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public static uint[] Offsets { get; } =
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[
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0,
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12,
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20
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];
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}
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191
Nerfed.Runtime/Graphics/Font/TextBatch.cs
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191
Nerfed.Runtime/Graphics/Font/TextBatch.cs
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using System.Numerics;
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using System.Runtime.InteropServices;
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using WellspringCS;
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namespace Nerfed.Runtime.Graphics;
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public unsafe class TextBatch : GraphicsResource
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{
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public const int INITIAL_CHAR_COUNT = 64;
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public const int INITIAL_VERTEX_COUNT = INITIAL_CHAR_COUNT * 4;
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public const int INITIAL_INDEX_COUNT = INITIAL_CHAR_COUNT * 6;
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public IntPtr Handle { get; }
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public Buffer VertexBuffer { get; protected set; } = null;
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public Buffer IndexBuffer { get; protected set; } = null;
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public uint PrimitiveCount { get; protected set; }
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public Font CurrentFont { get; private set; }
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private readonly GraphicsDevice graphicsDevice;
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private readonly int stringBytesLength;
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private TransferBuffer TransferBuffer;
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private byte* stringBytes;
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public TextBatch(GraphicsDevice device) : base(device)
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{
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graphicsDevice = device;
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Handle = Wellspring.Wellspring_CreateTextBatch();
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stringBytesLength = 128;
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stringBytes = (byte*)NativeMemory.Alloc((nuint)stringBytesLength);
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VertexBuffer = Buffer.Create<FontVertex>(graphicsDevice, BufferUsageFlags.Vertex, INITIAL_VERTEX_COUNT);
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IndexBuffer = Buffer.Create<uint>(graphicsDevice, BufferUsageFlags.Index, INITIAL_INDEX_COUNT);
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TransferBuffer = TransferBuffer.Create<byte>(
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graphicsDevice,
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TransferBufferUsage.Upload,
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VertexBuffer.Size + IndexBuffer.Size
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);
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}
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// Call this to initialize or reset the batch.
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public void Start(Font font)
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{
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Wellspring.Wellspring_StartTextBatch(Handle, font.Handle);
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CurrentFont = font;
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PrimitiveCount = 0;
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}
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// Add text with size and color to the batch
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public unsafe bool Add(
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string text,
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int pixelSize,
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Color color,
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HorizontalAlignment horizontalAlignment = HorizontalAlignment.Left,
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VerticalAlignment verticalAlignment = VerticalAlignment.Baseline
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)
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{
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int byteCount = System.Text.Encoding.UTF8.GetByteCount(text);
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if (stringBytesLength < byteCount)
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{
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stringBytes = (byte*)NativeMemory.Realloc(stringBytes, (nuint)byteCount);
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}
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fixed (char* chars = text)
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{
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System.Text.Encoding.UTF8.GetBytes(chars, text.Length, stringBytes, byteCount);
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byte result = Wellspring.Wellspring_AddToTextBatch(
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Handle,
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pixelSize,
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new Wellspring.Color { R = color.R, G = color.G, B = color.B, A = color.A },
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(Wellspring.HorizontalAlignment)horizontalAlignment,
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(Wellspring.VerticalAlignment)verticalAlignment,
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(IntPtr)stringBytes,
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(uint)byteCount
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);
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if (result == 0)
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{
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Log.Warning("Could not decode string: " + text);
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return false;
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}
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}
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return true;
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}
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// Call this after you have made all the Add calls you want, but before beginning a render pass.
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public unsafe void UploadBufferData(CommandBuffer commandBuffer)
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{
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Wellspring.Wellspring_GetBufferData(
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Handle,
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out uint vertexCount,
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out IntPtr vertexDataPointer,
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out uint vertexDataLengthInBytes,
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out IntPtr indexDataPointer,
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out uint indexDataLengthInBytes
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);
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Span<byte> vertexSpan = new Span<byte>((void*)vertexDataPointer, (int)vertexDataLengthInBytes);
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Span<byte> indexSpan = new Span<byte>((void*)indexDataPointer, (int)indexDataLengthInBytes);
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bool newTransferBufferNeeded = false;
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if (VertexBuffer.Size < vertexDataLengthInBytes)
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{
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VertexBuffer.Dispose();
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VertexBuffer = new Buffer(graphicsDevice, BufferUsageFlags.Vertex, vertexDataLengthInBytes);
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newTransferBufferNeeded = true;
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}
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if (IndexBuffer.Size < indexDataLengthInBytes)
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{
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IndexBuffer.Dispose();
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IndexBuffer = new Buffer(graphicsDevice, BufferUsageFlags.Index, vertexDataLengthInBytes);
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newTransferBufferNeeded = true;
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}
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if (newTransferBufferNeeded)
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{
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TransferBuffer.Dispose();
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TransferBuffer = new TransferBuffer(
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graphicsDevice,
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TransferBufferUsage.Upload,
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VertexBuffer.Size + IndexBuffer.Size
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);
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}
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if (vertexDataLengthInBytes > 0 && indexDataLengthInBytes > 0)
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{
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TransferBuffer.SetData(vertexSpan, true);
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TransferBuffer.SetData(indexSpan, (uint)vertexSpan.Length, false);
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CopyPass copyPass = commandBuffer.BeginCopyPass();
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copyPass.UploadToBuffer(
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new TransferBufferLocation(TransferBuffer),
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new BufferRegion(VertexBuffer, 0, (uint)vertexSpan.Length),
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true
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);
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copyPass.UploadToBuffer(
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new TransferBufferLocation(TransferBuffer, (uint)vertexSpan.Length),
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new BufferRegion(IndexBuffer, 0, (uint)indexSpan.Length),
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true
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);
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commandBuffer.EndCopyPass(copyPass);
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}
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PrimitiveCount = vertexCount / 2;
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}
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// Call this AFTER binding your text pipeline!
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public void Render(CommandBuffer commandBuffer, RenderPass renderPass, Matrix4x4 transformMatrix)
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{
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commandBuffer.PushVertexUniformData(transformMatrix);
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commandBuffer.PushFragmentUniformData(CurrentFont.DistanceRange);
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renderPass.BindFragmentSampler(
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new TextureSamplerBinding(
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CurrentFont.Texture,
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graphicsDevice.LinearSampler
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)
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);
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renderPass.BindVertexBuffer(VertexBuffer);
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renderPass.BindIndexBuffer(IndexBuffer, IndexElementSize.ThirtyTwo);
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renderPass.DrawIndexedPrimitives(
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0,
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0,
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PrimitiveCount
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);
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}
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protected override void Dispose(bool disposing)
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{
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if (!IsDisposed)
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{
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if (disposing)
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{
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VertexBuffer.Dispose();
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IndexBuffer.Dispose();
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}
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NativeMemory.Free(stringBytes);
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Wellspring.Wellspring_DestroyTextBatch(Handle);
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}
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base.Dispose(disposing);
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}
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}
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